Automatic controlling mechanism for looms.



W. H. BAKER &. F. E. KIP.

Patented Aug. 7, I900.

AUTOMATIC CONTROLLING MECHANISM FOR LOOM S.

(No Model.)

6 s 6 A &\

(Application filed Jan. 5, 1900.)

WITNESSES:

i. Wf 6% JZT INVENTOR-S Nrrnn Frames n'rnr FFlFe \VILLIAM H. BAKER, OF CENTRAL FALLS, RHODE ISLAND,.AND FR'EDERIC E. KIP, OF MONTCLAIR, NEW JERSEY.

AUTOMATIC CONTROLLlNG M ECHANISM FOR LOOlViS.

SPECIFICATION forming part of Letters Patent No. 655,646, dated August '7', 1 900. Application filed January 5, 1900. Serial No. 410. (No model.)

To'aZZ whom it may concern: represents a shuttle open at top and bottom 1% it known that we, VVILLIAM I-I. BAKER, and having twe spring-jaws Z) Z) to embrace residing at Central Falls, Providence county, and holdtae bobbon c in place. To receive Rhode Island, and FREDERIO E.KIP, residing, the jaws, the bobbin has aboutits butt a cir- 55 5 at Montclair, Essex county, New Jersey, citicumferentially-grooved ring (1 Where the jaws Zens of the United States, have invented cerembrace it. The butt or enlarged end of the tain new and useful Improvements in Autobobbin has in it a longitudinally-extending matic Controlling Mechanisms for Looms, of slot, in which is mounted an indicating-lever which the following is a specification. e, fulcrumed at f in or on a ring embracing 6o This invention relates to mechanical dethe bobbin. Aspring g bears at its free end vices for indicating the-exhaustion or subon the inner face of the lever e and tends to stantial exhaustion of the weft or filling in press it outward against the ring d or other the weft-carrier or shuttle in play in a loom stop, and when the weft or filling carried by for automatically controlling or setting in the bobbin is substantially exhausted said 65 i motion mechanism for furnishinga fresh suplever will be so pressed outward, as seen in ply of weft or filling or for stopping the loom, Fig. 1. The lever is curvedand its arched so that a supply of weft or filling may be portion protruded from the slot when pressed furnished; and in the present invention the outward, as in Fig. 1; but when the yarn or object is to provide within the weft-carrier filling h is wound on the holder 0, as seen in 70 means whereby when the weft or filling in the Fig. 3, it overwraps the lever e and prevents carrier or shuttle is substantially exhausted it from protruding, so that the free end of the the fact will be indicated by the periodical enlever is held pressed in and out of contact try of a feeler into the shuttle, and if the withits stop. weft is nearly or quite exhausted, as the case Some part of the lever e, and preferably 75 may be, mechanism will be set in motion to its free extremity, which extends beyond the furnish a fresh supply or to stop the loom. ring cl, forms the detent-indicator, which by In the drawings which serve to illustrate the movementin or out radially of the lever the invention, Figure 1 is a longitudinal ver- 6 either places itself in the path of a feeler 2' tical axial section of a shuttle and an e:;- or moves out of said path. The feeleri(seen 8o hausted bobbin or weft-holder therein, illusin Fig. 2) is a known device and will need no trating the invention; and Fig. 2 is a plan of further description here than the statement the left-hand end of the same, showing the that as ordinarily constructed said feeler enfeeler. Fig. 3 is a fragmentary section of the tore the shuttle when the lay heats up and bobbin of Fig. 1, but on a larger scale and serves to control the weft-supplying or stop- 85 5 showing weft or filling on the bobbin. Fig. ping mechanism of the loom. WVhere the 4 is a sectional view similar to Fig. 1, but indicator-lever is normally in its path, the showing a spindle in the shuttle and a full feeler will be pressed backward and actubobbin thereon. Fig. 5 illustrates the invenated to avoid the'operation of other mechantion as. applied to a bobbin or weft-holder ism on the loom. -It will not be necessary to 90 40 mounted in a bobbin-case, which latter is to describe such mechanism, as it is known and be mounted in a shuttle. Fig. 6 is a View operated on looms now in use. As shown in similar to Fig. 1, but illustrating a construc- Figs. 1, 2, and 3, the free end of the indication wherein the feeler instead of normally tor-lever 6 when the latter is held pressed in impinging on the indicator-arm of the bobby the yarn or filling h on the bobbin pro- 95 bin is adapted to so impinge only when the jects just above the surface of the bobbin weft or filling in the shuttle is substantially and in the path of the feeler t', which plays exhausted. Fig. 7 is a sectional view showover the top of the bobbin at this point, so ing the bobbin on the spindle of a windingthat at each vibration of the lay under norframe and illustrating a feature which will mal conditions the feeler enters the shuttle I00 be hereinafter described. and impinges on said lever; but when the Referring primarily to Figs. 1, 2, and 3, a yarn 72 is substantially exhausted and a fresh it a spindle to hold the bobbin.

supply is required the spring g is permitted to press the lever c outward, so that the detent-head of the same is moved outward and above the path of the feeler 0. Consequently the latter will not be actuated and the weftsupplying or loom-stopping mechanism controlled thereby Will be actuated.

It will be understood that the shuttle a will be cut down at one side or provided with an aperture in its side to permit the feeler i to enter, and if there be a bobbin-case j in the shuttle, as seen in Fig. 5, this case will also be provided with a recess or aperture coincident With that in the shuttle for the entry of the feeler.

Fig. 4 shows the same construction as that seen in Fig. 1, except that the shuttle has in In an automatic weft-supplying mechanism employing the construction of Fig. l the exhausted bobbin is knocked out and replaced by a full one. In the construction of Fig. 5 the bobbin-case is knocked out, and in the construction shown in Fig. 4 the shuttle will be displaced.

Fig. 6 shows a view illustrating the construction shown in Fig. 1, except that the detent-head Z of the lever c is adapted to be held by the weft on the bobbin under normal conditions out of the path of the feeler t' and to be put into the path of the said feeler by the spring 9 when the weft or filling is substantially exhausted.

. It will be understood that the ring or band d on the bobbin is only a convenience for providing a surface for the jaws b to bear on, and any means may be employed for this purpose. Incidentally the ring 01 serves as a stop to limit the movement outward of the lever 0. These details may be varied without departing in any way from our invention.

It will be noted that the indicator-lever c has a short arm or heel on back of the fulcrum f and that this arm or heelm protrudes into the hollow or bore in the bobbin when the bobbin is empty or exhausted of weft, as seen in Fig. 1. The object of this will be explained. It is found that in winding a bobbin having an indicator-lever of this charac- Y ter that the centrifugal force acting to throw or force said lever outward radially is greater than the yarn can overcome in winding on or overwrapping it. Therefore the arm or heel m is made to project into the path of the spindle of the winding-frame, so that when the bobbin is slipped onto said spindle the latter will displace said arm an outward, and thus draw in and hold in the lever 0, so that the centrifugal force cannot act on it. In Fig. 7, which shows a bobbin 0 on the spindle n of a winding-frame or spinning-frame, it will be noted how the said spindle displaces the arm m. When there is a spindle in the weft-carrier to receive the bobbin,-as in Fig. 4, for example, there will be a recess 0 in said spindle coincident with the arm or heel m, so as to permit the lever e to move outward when the weft or filling is nearly or quite exhausted.

The word bobbin as herein employed is meant to include any one of the various forms of weft or filling holders employed in weaving.

It may be stated that a feeler operating on the principle illustrated in Fig. 6-that is to say, adapted to miss theindicator in the shuttle normally or when there is a supply of Weft in the carrier and to impinge upon it when the weft is substantially exhausted-is illustrated in our pending application, Serial No. 4,221, filed February 6, 1900. I

Having thus described. our invention, we claim- 1. A bobbin or weft-holder having in it a longitudinal slot, an indicator-lever provided with a detent-head and fulcrumed in said slot, a stop on said weft-holder to limit the outward movement of the detent-head on the lever, and a spring behind said lever and adapted to move the latter out to said stop, said lever having a projecting portion overwrapped by the weft and the detent-head on the lever being thus depressedand held out of the path of a feeler.

2. A bobbin or weft-holder having a longitudinal slot and having in said slot a radiallymovable indicator-lever backed by a spring which tends to move it outward and up to a stop, and the said spring, said lever having a curved or arched portion adapted to be overwrapped by the weft an d a detent-head adapted to be put into and out of the path of a feeler, the weft on the bobbin holding it in one of its positions and the said spring holding it in its other position.

3. The combination with a shuttle having means for holding the bobbin in place therein, and adapted to permit the entry of a feeler, of a bobbin to fit into said shuttle and provided with a longitudinal slot, an indicator-lever fulorumed in said slot, and having an arched portion to be overwrapped by the weft or filling, a heel which is adapted to project into the hollow of the bobbin when the latter is exhausted of weft, and a detenthead, adapted to be put into and out of the path of the feeler, and a spring adapted to hold said indicatordever in one of its two positions.

In witness whereof we have hereunto signed our names, this 13th day of December, 1899, in the presence of two subscribing witnesses.

\VILLIAM H. BAKER. FREDERIC E. KIP. Witnesses:

HENRY CONNETT, PETER A. Ross. 

